The prices that Americans pay for gas at the pump may reach an all-time high this summer. The average price is $3.70 per gallon, which is an increase of 30 cents since July and the climb in price from July to August was 9 percent. The increase is particularly concerning because a reduction in global demand, caused by a persistent world-wide recession, has kept demand for gas relatively low. Some have predicted that the price of gas will reach $3.90 per gallon before Labor Day. Gas prices have risen each month for seven straight months this year.